You could definitely reflect ex. infrared without affecting photosynthesis. I think your response is a little quick to brush off these ideas. There are many pos

You could definitely reflect ex. infrared without affecting photosynthesis. I think your response is a little quick to brush off these ideas. There are many possible venues for geoengineering that could have fantastic benefits, even beyond affecting climate change. Brushing them off as ideas akin to "playing god" is both unprincipled and potentially harmful to both mankind and the planet.